What if we did not have the Book of Romans? What difference would it make?

Revelation 22:10-21; Romans 1:16; 2 Timothy 2:15; Romans 1:1; Romans 16:22; Romans 1:7; Romans 3:9-11; Romans 3:21; Romans 3:23; Romans 5:8; Romans 6:23; Romans 8:9; Romans 8:28; Romans 8:37-39; Romans 10:9-10; Romans 12:1; Romans 12:19; Romans 16:17; Romans 1:8-15; Romans 15:24; Romans 16:1; Romans 1:18–3:20; Romans 3:21–8:39; Romans 9:1–11:36; Romans 12:1–15:13; Romans 4:1-11; Romans 11:11-12; Romans 3:9-20; Romans 5:1-19; Romans 3:21-26; Romans 8:3-4; Romans 8:1; 9-11; Romans 6:1-7; 2 Corinthians 5:17.